NHGIS


Topic Replies Activity
Are there files linking nominal counties to units which are consistent over time? 4 April 16, 2018
Question about 1950, 1960, 1970 tract-level housing and population data 2 April 11, 2018
trying again need more characters 2 January 16, 2018
How to download total population for places in the US back to 1900? I have filtered, but don't see the tables? 2 January 11, 2018
Can you determine the states people move from to a certain state? 2 November 14, 2017
Do PUMAs or consistent PUMAs intersect census tract boundaries? 2 October 9, 2017
Are weights necessary/"svyset" needed for regressions with NHGIS data? 2 August 7, 2017
Merged 2011-2015 ACS csv data to shapefile of same wave, but 338 tracts in the shapefile aren't in the csv file. 4 June 9, 2017
What is wrong with the 1960 data? 3 August 24, 2015
Discrepancies between 1980 data: How can in-migrants be larger than total population? 2 September 23, 2014
PUMA to MIGPUMA crosswalk 2 November 13, 2013
historical address information? 2 October 10, 2013
Why do 2010 shapefiles not align with 2000 and older shapefiles? 2 January 22, 2013
Can I use NHGIS for genealogy? 2 January 22, 2013
Can I just get a copy of every data table in NHGIS and save myself the hassle of repeatedly downloading different tables? 2 January 22, 2013
Why do I receive so many data files in my downloaded zipped file? 2 January 22, 2013
What are time series tables in NHGIS? 2 January 21, 2013
Something is wrong with the NHGIS data I downloaded. What should I do? 2 January 20, 2013
How long does a data extract take on NHGIS? 2 January 20, 2013
Why can't I select to download data for a single county or a single MSA in NHGIS? 2 January 19, 2013
Does NHGIS have data for outside the USA? 2 January 19, 2013
What is the unit of the SHAPE_AREA and SHAPE_LEN? 2 January 18, 2013
Does NHGIS have data for Puerto Rico, the US Virgin Islands, or other territories? 2 January 18, 2013
What do the field names (e.g., AG3001, B5P001) in an NHGIS data file mean? 2 January 18, 2013
Do I need special statistical software like SPSS, SAS, or Stata to use NHGIS data? 2 January 18, 2013
What projected coordinate system are the GIS boundary data in? 2 January 17, 2013
What is the source of NHGIS data? 2 January 16, 2013
I downloaded the data tables and the GIS boundary files. Now how do I join them together? 2 January 16, 2013
Why are there so many different geographic level filter options? 2 January 16, 2013
Why can't I download data at the census tract level from before 1910? 2 January 12, 2013